I have a CCTV app that I run on my network. It comes with a remote viewing application. I used a port sniffer to see what ports the viewer used and opened them in NAT in Win Server 2003. The viewes is fairly easy to come by, so I'm curious if there's any way to password protect or some other way to protect the ports the app uses?
I have setup a VPN and can use the viewer across it, but I would like to give some people access to the CCTV app with out giving them access to the VPN.